package top.jacktgq.itheima.netty.protocol_design.groupchat.server.service;

/**
 * @Author CandyWall
 * @Date 2021/3/25--16:23
 * @Description
 */
public class HelloServiceImpl implements HelloService {
    @Override
    public String sayHello(String msg) {
        // int i = 1 / 0;
        return "你好，" + msg;
    }
}
